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1. 发明授权

EP2889652B1 X-ray fluoroscopic imaging system 有权
公开(公告)号：EP2889652B1
公开(公告)日：2020-01-22
申请号：EP14200195.7
申请日：2014-12-23
申请人： Nuctech Company Limited , Tsinghua University
发明人： TANG, Huaping , CHEN, Zhiqiang , TANG, Chuanxiang , CHEN, Huaibi , LI, Yuanjing , ZHAO, Ziran , LIU, Yaohong , SUN, Shangmin , YAN, Xinshui , QIN, Zhanfeng
IPC分类号： G01V5/00

2. 发明授权

EP2800273B1 DEVICE AND METHOD FOR USE IN CONTROLLING PULSE OUTPUT 有权
公开(公告)号：EP2800273B1
公开(公告)日：2019-08-07
申请号：EP12862173.7
申请日：2012-12-28
申请人： Nuctech Company Limited , Tsinghua University
发明人： LIU, Yaohong , TANG, Chuanxiang , YAN, Xinshui , JIA, Wei , GAO, Jianjun , LIU, Jinsheng , YIN, Wei , LIU, Xiying , SHI, Hao
IPC分类号： H03K3/57 , H03K7/08

3. 发明公开

EP2800273A1 DEVICE AND METHOD FOR USE IN CONTROLLING PULSE OUTPUT 有权
标题翻译： VORRICHTUNG UND VERFAHREN ZUR VERWENDUNG BEI DER STEUERUNG EINER IMPULSABGABE
公开(公告)号：EP2800273A1
公开(公告)日：2014-11-05
申请号：EP12862173.7
申请日：2012-12-28
申请人： Nuctech Company Limited , Tsinghua University
发明人： LIU, Yaohong , TANG, Chuanxiang , YAN, Xinshui , JIA, Wei , GAO, Jianjun , LIU, Jinsheng , YIN, Wei , LIU, Xiying , SHI, Hao
IPC分类号： H03K5/14
CPC分类号： H02M1/08 , H03K3/57 , H03K7/08
摘要： The present invention provides a pulse modulating power source, which comprises: a plurality of discharging modules connected in series during discharging; a plurality of triggers corresponding to said plurality of discharging modules, wherein each trigger provides a trigger signal to the corresponding discharging module to turn it on; a control logic module for controlling the trigger signals so as to turn on said plurality of discharging modules successively with a time delay; an output terminal for outputting a voltage.
摘要翻译：本发明提供了一种脉冲调制电源，包括：在放电期间串联连接的多个放电模块; 与所述多个放电模块对应的多个触发器，其中每个触发器向相应的放电模块提供触发信号以使其接通; 控制逻辑模块，用于控制触发信号，以便以时间延迟连续地接通所述多个放电模块; 用于输出电压的输出端子。

4. 发明公开

EP2800267A1 DEVICE AND METHOD FOR USE IN ALTERNATING-VOLTAGE PULSE OUTPUT 有权
标题翻译： VORRICHTUNG VERFAHREN ZUR VERWENDUNG在EINEM WECHSELSPANNUNGS-IMPULSAUSGANG
公开(公告)号：EP2800267A1
公开(公告)日：2014-11-05
申请号：EP12862988.8
申请日：2012-12-28
申请人： Nuctech Company Limited , Tsinghua University
发明人： LIU, Yaohong , TANG, Chuanxiang , YAN, Xinshui , JIA, Wei , GAO, Jianjun , LIU, Jinsheng , YIN, Wei , LIU, Xiying , SHI, Hao
IPC分类号： H02M9/04 , H03K3/64
CPC分类号： H03K3/57 , H02M1/088 , H02M2003/077 , H03K3/64
摘要： The present invention provides a high voltage pulse modulating power source based on alternate group triggering, which comprises: a DC stabilized voltage source for supplying power to the high voltage pulse modulating power source; a plurality of solid-state switches; a plurality of triggers corresponding to said plurality of solid-state switches, wherein each trigger provides a trigger signal to its corresponding solid-state switch to turn on said corresponding solid-state switch, wherein said plurality of triggers are divided into at least two groups of triggers; a time sequence control module, which, at time t1, controls said plurality of triggers to generate trigger signals so as to turn on said plurality of solid-state switches simultaneously, and at time t2, controls one group of said at least two groups of triggers to generate trigger signals to turn on solid-state switches corresponding to this group of triggers, wherein time t1 and time t2 appear alternately.
摘要翻译：本发明提供一种基于交替组触发的高压脉冲调制电源，包括：用于向高电压脉冲调制电源供电的直流稳压电压源; 多个固态开关; 与所述多个固态开关相对应的多个触发器，其中每个触发器向其对应的固态开关提供触发信号以打开所述对应的固态开关，其中所述多个触发器被分成至少两个组的触发器时间控制模块，其在时间t1控制所述多个触发器以产生触发信号，以便同时接通所述多个固态开关，并且在时间t2，控制一组所述至少两组触发器产生触发信号以打开与该组触发相对应的固态开关，其中时间t1和时间t2交替出现。

5. 发明公开

EP3461006A3 PROTECTION CIRCUIT, OSCILLATION COMPENSATION CIRCUIT AND POWER SUPPLY CIRCUIT IN SOLID STATE PULSE MODULATOR 有权
公开(公告)号：EP3461006A3
公开(公告)日：2019-06-26
申请号：EP18190829.4
申请日：2018-08-24
申请人： Nuctech Company Limited
发明人： LIU, Yaohong , ZHAO, Ziran , LIU, Jinsheng , JIA, Wei , LI, Wei , YAN, Xinshui
IPC分类号： H03K17/06 , H03K3/57 , H03K17/0812
摘要： The present disclosure provides a gate protection circuit for an Insulated Gate Bipolar Transistor (IGBT), the IGBT being used as a switch device in a solid state pulse modulator based on the MARX generator principle, the gate protection circuit including: a voltage regulator configured to supply a stable voltage to an emitter of the IGBT with respect to the ground for a gate of the IGBT.

6. 发明公开

EP3457118A3 RAY ENERGY CALIBRATION DEVICE, RAY ENERGY CALIBRATION METHOD AND RAY IMAGING SYSTEM 有权
公开(公告)号：EP3457118A3
公开(公告)日：2019-04-10
申请号：EP18195278.9
申请日：2018-09-18
申请人： Nuctech Company Limited
发明人： CHEN, Yumei , YAN, Xinshui , SONG, Quanwei , YIN, Wei , GUAN, Weiqiang
IPC分类号： G01N23/00
摘要： The present disclosure provides ray energy calibration device and method, and a ray imaging system. The ray energy calibration device includes: a plurality of wheels arranged to be rotatable about a common shaft and each provided with one or more protruding blocks at respective specific positions of an outer circumference thereof; and a plurality of calibration members; each of the calibration members is configured such that through rotation of a corresponding one of the wheels, the calibration member can be moved to a calibration position by the protruding block at a specific position on the outer circumference of the wheel.

7. 发明公开

EP3648327A1 FILAMENT POWER SUPPLY FOR ELECTRON ACCELERATOR AND ELECTRON ACCELERATOR 有权
公开(公告)号：EP3648327A1
公开(公告)日：2020-05-06
申请号：EP19205907.9
申请日：2019-10-29
申请人： Nuctech Company Limited
发明人： LIU, Jinsheng , LIU, Yaohong , JIA, Wei , YAN, Xinshui , LI, Wei
IPC分类号： H02M3/156 , H01J1/13 , H05G1/10
摘要： The present disclosure provides a filament power supply for an electron accelerator and an electron accelerator. The filament power supply includes: a rectifier circuit configured to convert a power frequency AC voltage signal into a DC voltage signal; an inverter circuit configured to convert the DC voltage signal into an AC voltage signal and output the AC voltage signal; a sampling circuit configured to sample at least one of a current or a voltage of the AC voltage signal to obtain at least one of a current sampling signal or a voltage sampling signal; a pulse width modulation control chip configured to adjust a duty cycle of a pulse width modulation signal output by the pulse width modulation control chip until a voltage of the current sampling signal is equal to that of a reference current signal, or a voltage of the voltage sampling signal is equal to that of a reference voltage signal; and a modulation circuit configured to modulate the power frequency AC voltage signal according to the pulse width modulation signal to obtain a modulation signal and output the power frequency AC voltage signal and the modulation signal to the inverter circuit to trigger the inverter circuit to convert the DC voltage signal into the AC voltage signal.

8. 发明公开

EP3461006A2 PROTECTION CIRCUIT, OSCILLATION COMPENSATION CIRCUIT AND POWER SUPPLY CIRCUIT IN SOLID STATE PULSE MODULATOR 有权
公开(公告)号：EP3461006A2
公开(公告)日：2019-03-27
申请号：EP18190829.4
申请日：2018-08-24
申请人： Nuctech Company Limited
发明人： LIU, Yaohong , ZHAO, Ziran , LIU, Jinsheng , JIA, Wei , LI, Wei , YAN, Xinshui
IPC分类号： H03K17/06 , H03K3/57
CPC分类号： H03K17/08126 , H03K3/57 , H03K17/06 , H03K17/08128 , H03K17/567 , H03K2017/066 , H03K2217/0081
摘要： The present disclosure provides a gate protection circuit for an Insulated Gate Bipolar Transistor (IGBT), the IGBT being used as a switch device in a solid state pulse modulator based on the MARX generator principle, the gate protection circuit including: a voltage regulator configured to supply a stable voltage to an emitter of the IGBT with respect to the ground for a gate of the IGBT.

9. 发明公开

EP3457118A2 RAY ENERGY CALIBRATION DEVICE, RAY ENERGY CALIBRATION METHOD AND RAY IMAGING SYSTEM 有权
公开(公告)号：EP3457118A2
公开(公告)日：2019-03-20
申请号：EP18195278.9
申请日：2018-09-18
申请人： Nuctech Company Limited
发明人： CHEN, Yumei , YAN, Xinshui , SONG, Quanwei , YIN, Wei , GUAN, Weiqiang
IPC分类号： G01N23/00
摘要： The present disclosure provides ray energy calibration device and method, and a ray imaging system. The ray energy calibration device includes: a plurality of wheels arranged to be rotatable about a common shaft and each provided with one or more protruding blocks at respective specific positions of an outer circumference thereof; and a plurality of calibration members; each of the calibration members is configured such that through rotation of a corresponding one of the wheels, the calibration member can be moved to a calibration position by the protruding block at a specific position on the outer circumference of the wheel.

10. 发明公开

EP3041002A1 RAY FILTER AND DUAL-ENERGY X-RAY INSPECTION SYSTEM 有权
标题翻译：多普勒超声波发生器
公开(公告)号：EP3041002A1
公开(公告)日：2016-07-06
申请号：EP15203180.3
申请日：2015-12-30
申请人： Nuctech Company Limited
发明人： KANG, Kejun , CHEN, Yumei , LIU, Yaohong , YAN, Xinshui , YIN, Wei , GUAN, Weiqiang
IPC分类号： G21K1/10
CPC分类号： G21K1/10
摘要： The present disclosure provides a ray filter (10). The ray filter is arranged in front of an X-ray source and is switchable between a first state where the ray filter is configured to allow the high-energy X-rays and the low-energy X-rays to pass therethrough and a second state where the ray filter is configured to only allow the high-energy X-rays to pass therethrough. The present disclosure further provides a dual-energy X ray inspection system comprising a dual-energy X-ray source and the ray filter. The ray filter of the present disclosure has a small volume, a simple configuration, and is easily applicable to the dual-energy X ray inspection system without changing arrangement of the inspection system.
摘要翻译：本公开提供了一种射线过滤器（10）。射线过滤器布置在X射线源的前面，并且可以在射线过滤器被配置为允许高能量X射线和低能X射线通过的第一状态和第二状态之间切换其中射线过滤器被配置为仅允许高能量X射线通过。本公开还提供了一种双能X射线检查系统，其包括双能量X射线源和射线滤光器。本公开的射线滤波器具有体积小，结构简单，并且可以容易地应用于双能量X射线检查系统，而不改变检查系统的布置。

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